Sergei Konstantinovich Godunov (Russian: Серге́й Константи́нович Годуно́в; 17 July 1929 – 15 July 2023) was a Soviet and Russian professor at the Sobolev Institute of Mathematics of the Russian Academy of Sciences in Novosibirsk, Russia.

Sergei Godunov
Godunov in 2002
Born
Sergei Konstantinovich Godunov

(1929-07-17)17 July 1929
Died15 July 2023(2023-07-15) (aged 93)
Novosibirsk, Russia
NationalityRussian
Alma materMoscow State University
Known forGodunov's theorem
Godunov's scheme
AwardsLenin Prize (1959)
Scientific career
FieldsApplied mathematics
InstitutionsSobolev Institute of Mathematics, Novosibirsk, Russia
Doctoral advisorIvan Petrovsky

Biography

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Godunov's most influential work is in the area of applied and numerical mathematics, particularly in the development of methodologies used in Computational Fluid Dynamics (CFD) and other computational fields. Godunov's theorem (Godunov 1959) (also known as Godunov's order barrier theorem) : Linear numerical schemes for solving partial differential equations, having the property of not generating new extrema (a monotone scheme), can be at most first-order accurate. Godunov's scheme is a conservative numerical scheme for solving partial differential equations. In this method, the conservative variables are considered as piecewise constant over the mesh cells at each time step and the time evolution is determined by the exact solution of the Riemann (shock tube) problem at the inter-cell boundaries (Hirsch, 1990).

On 1–2 May 1997 a symposium entitled: Godunov-type numerical methods, was held at the University of Michigan to honour Godunov. These methods are widely used to compute continuum processes dominated by wave propagation. On the following day, 3 May, Godunov received an honorary degree from the University of Michigan. Godunov died on 15 July 2023, two days shy of his 94th birthday.[1]

Education

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Awards

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See also

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Notes

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References

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  • Godunov, Sergei K. (1954), Ph. D. Dissertation: Difference Methods for Shock Waves, Moscow State University.
  • Godunov, S. K. (1959), A Difference Scheme for Numerical Solution of Discontinuous Solution of Hydrodynamic Equations, Mat. Sbornik, 47, 271-306, translated US Joint Publ. Res. Service, JPRS 7225 November 29, 1960.
  • Godunov, Sergei K. and Romenskii, Evgenii I. (2003) Elements of Continuum Mechanics and Conservation Laws, Springer, ISBN 0-306-47735-1.
  • Hirsch, C. (1990), Numerical Computation of Internal and External Flows, vol 2, Wiley.
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